Item | Description |
Bearing Bar | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10---100x10mm etc |
I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc | |
US standard: 1'x3/16', 1 1/4'x3/16', 1 1/2'x3/16', 1'x1/4', 1 1/4'x1/4', 1 1/2'x1/4', 1'x1/8', 1 1/4'x1/8', 1 1/2'x1/8' etc | |
Bearing Bar Pitch | 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3, 32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc |
US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. | |
Twisted Cross Bar Pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2' & 4' etc |
Material Grade | ASTM A36, A1011, A569, Q235, S275JR, SS304, SS400, |
Mild steel & Low carbon steel, etc | |
Surface Treatment | Black, self colour, hot dip galvanized, painted, spray coating |
Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
Standard | China: YB/T 4001.1-2007, USA: ANSI/NAAMM(MBG531-88), |
UK: BS4592-1987, Australia: AS1657-1985, | |
Germany: DIN24537-1-2006, Japan: JIS |
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Specification
Matrial | Low carbonsteel / Stainless steel |
Grade | CN: Q235, Q345 ; UK: 43A |
Bearing bar size | 20X5, 25X3, 25X4, 25X5, 30X3, 30X4, 30X5, 32X3, 32X5, 40X5, 50X4... 75X8, 100X8mm, etc |
Bearing bar pitch | 20,25,30,32.5,34.3,40,50,60,62,65mm |
Bearing bar type | plain, Serrated (tooth-like), I bar (I section), Serrated-I |
Cross bar size | 5X5, 6X6, 8X8mm (twisted bar)/5, 6, 8mm ( round bar) |
Cross bar pitch | 40, 50, 60, 65, 76, 100, 101.6, 120, 130mm, etc. |
panel size: | 1000x1000mm, 1000x2000mm, 1000x3000mm, 1000x6000mm |
Surface treatment | Untreated, hot DIP galvanized, cold DIP galvanized, painted, powder coated, pickling, electrolytic polishing, or as customers’ requirement. |
Most Popolar
NO. | Bearing size(mm) | Cross bar pitch(mm) | Weight(kg/square meter) |
G253/30/50 |
25x3 | 50 | 25.7 |
G253/30/100 | 100 | 22.8 | |
G255/30/50 |
25x5 | 50 | 39 |
G255/30/100 | 100 | 36.2 | |
G323/30/50 |
32x3 | 50 | 31.3 |
G323/30/100 | 100 | 28.4 | |
G325/30/50 |
32x5 | 50 | 48.4 |
G325/30/100 | 100 | 45.5 |
Feature:
Specification of galvanized steel grating:
Common specification of Steel grating | |
Material Standard | ASTM A36, A1011, A569, Q235, S275JR,Stainless steel 304, Mild steel & Low carbon steel, etc |
Bearing Bar (width*thickness) | 25x3, 25x4, 25x4.5, 25x5, 30x3, 30x4, 30x4.5, 30x5, 32x5, 40x5, 50x5, 65x5, 75x6, 75x10…..100 x10mm etc; I bar: 25x5x3, 30x5x3, 32x5x3, 40x5x3 etc US standard: 1''x3/16'', 1 1/4''x3/16'', 1 1/2''x3/16'', 1''x1/4'',1 1/4''x1/4'', 1 1/2''x1/4'', 1''x1/8'', 1 1/4''x1/8'', 1 1/2''x1/8'' etc |
Bearing Bar Pitch | 12.5, 15, 20, 23.85, 25, 30, 30.16, 30.3,32.5, 34.3, 35, 38.1, 40, 41.25, 60, 80mm etc. US standard: 19-w-4, 15-w-4, 11-w-4, 19-w-2, 15-w-2 etc. |
Twisted Cross Bar Pitch | 38.1, 50, 60, 76, 80, 100, 101.6, 120mm, 2'' & 4'' etc |
Surface treatment | untreated(black), hot-dipped galvanized ,powder coated, electroplate, painting or as per customers’ requirement. |
Grating Style | Plain / Smooth, Serrated /teeth, I bar, serrated I bar |
Specifications of steel grating
1>Material :Mild steel & Low carbon steel, etc.
2>Surface treatment: hot-dipped galvanized, electric galvanized.
1>Bearing bar shapes: plain or serrated or I bar type.
2>Bearing Bar Pitch (center to center): 30, 40, 60mm are recommended,but we can also do it under customer's request.
3>Bearing Bar (Load Bar) Specifications (mm):The specification(thickness of bearing bar)of plain type and serrated type is 20 x 3 to 100 x 10;
4>Cross bar pitch(mm) :38, 40, 50, 60, 76, 80, 100, 110, 120 etc.
Standards of serrated galvanized steel grating.
Steel grating standard | Steel standard | Galvanizing standard | |
China standard | YB/T 4001.1-2007 | GB700-88 | GB/T13912-2002 |
USA standard | ANSI/NAAMM(MBG531) | ASTM(A36) | ASTM(A123) |
U.K. standard | BS4592 | BS4360(43A) | BS729 |
Australia standard | AS1657 | AS3679 | AS1650 |
Tolerance of hot dip galvanized steel grating
The allowed deviation of length is +0/-5mm, while the allowed deviation of width is +/-5 mm.
The non-perpendicularity of bearing bar is allowed no more than 10% of width of bearing bar.
Cross bar surface should not surpass bearing bar surface 1mm, beginning & end of cross bar should not surpass the end surfaces of two sides of grating 2mm.
Packaging and shipping of steel grating
Steel grating ready to delivery. Stock place of our factory.
1) Provide sample (about 3 days)
2) Factory direct sale
3) It can customize according to the requirements or drawings
4) 14 hours online
5) With the fastest speed of delivery
6) Answer questions in a timely manner
7)After sales service installation instructions or other quality problems